package cn.itcast.controller;

import cn.itcast.constant.MessageConstant;
import cn.itcast.entity.Result;
import cn.itcast.service.*;
import com.alibaba.dubbo.config.annotation.Reference;
import org.apache.poi.xssf.usermodel.XSSFRow;
import org.apache.poi.xssf.usermodel.XSSFSheet;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.OutputStream;
import java.math.BigDecimal;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * 报表操作
 */
@RestController
@RequestMapping("/report")
public class ReportController {

    @Reference
    private MemberService memberService;
    @Reference
    private SetmealService setmealService;
    @Reference
    private ReportService reportService;
    @Reference
    private IncomeService incomeService;
    @Reference
    private OrderService orderService;
    @Reference
    private PayService payService;

    //会员数量折线图数据统计
    @RequestMapping("/member/count")
    public Result getMemberReport(){
        Map<String,Object> map=new HashMap<>();
        try {
            List<String> months=new ArrayList();

            //获得当前日历对象
            Calendar calendar=Calendar.getInstance();
            //获得过去一年的十二个月
            calendar.add(Calendar.MONTH,-12);//获得当前时间的12个月前的时间
            for (int i = 0; i <12 ; i++) {
                calendar.add(calendar.MONTH,1);
                Date date=calendar.getTime();
                months.add(new SimpleDateFormat("yyyy.MM").format(date));
            }
            map.put("months",months);

            List<Integer> memberCount = memberService.findMemberCountByMonths(months);
            map.put("memberCount",memberCount);
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_SUCCESS,map);
        } catch (Exception e) {
            return new Result(true, MessageConstant.GET_MEMBER_NUMBER_REPORT_FAIL);
        }
    }

    //套餐预约占比饼状图数据统计
    @RequestMapping("/setmeals")
    public Result getSetmealReport(){
        Map<String,Object> map=new HashMap<>();
        try{
        List<String> setmealNames=new ArrayList<>();
        List<Map<String,Object>> setmealCount=setmealService.findSetmealOrderedCount();
        map.put("setmealCount",setmealCount);

        for (Map<String, Object> stringObjectMap : setmealCount) {
            String name= (String) stringObjectMap.get("name");
            setmealNames.add(name);
        }
        map.put("setmealNames",setmealNames);

        return new Result(true,MessageConstant.GET_SETMEAL_COUNT_REPORT_SUCCESS,map);
    }catch (Exception e){
        e.printStackTrace();
        return new Result(false,MessageConstant.GET_SETMEAL_COUNT_REPORT_FAIL);
        }
    }

        //运营数据统计
        @RequestMapping("/business")
        public Result getBusinessReport() {
            try {
                Map<String, Object> map = reportService.getBusinessReportData();
                return new Result(true, MessageConstant.GET_BUSINESS_REPORT_SUCCESS, map);
            } catch (Exception e) {
                return new Result(false, MessageConstant.GET_BUSINESS_REPORT_FAIL);
            }
        }

        //导出excel报表
        @RequestMapping("/export/businesses")
        public Result exportBusinessReport(HttpServletRequest request, HttpServletResponse response){
            try{
                Map<String,Object> result = reportService.getBusinessReportData();
                //取出返回结果数据，准备将报表数据写入到Excel文件中
                String reportDate = (String) result.get("reportDate");
                Integer todayNewMember = (Integer) result.get("todayNewMember");
                Integer totalMember = (Integer) result.get("totalMember");
                Integer thisWeekNewMember = (Integer) result.get("thisWeekNewMember");
                Integer thisMonthNewMember = (Integer) result.get("thisMonthNewMember");
                Integer todayOrderNumber = (Integer) result.get("todayOrderNumber");
                Integer thisWeekOrderNumber = (Integer) result.get("thisWeekOrderNumber");
                Integer thisMonthOrderNumber = (Integer) result.get("thisMonthOrderNumber");
                Integer todayVisitsNumber = (Integer) result.get("todayVisitsNumber");
                Integer thisWeekVisitsNumber = (Integer) result.get("thisWeekVisitsNumber");
                Integer thisMonthVisitsNumber = (Integer) result.get("thisMonthVisitsNumber");
                List<Map> hotSetmeal = (List<Map>) result.get("hotSetmeal");

                //String filePath = request.getSession().getServletContext().getRealPath("template")+ File.separator+"report_template.xlsx";
                InputStream inputStream=Thread.currentThread().getContextClassLoader().getResourceAsStream("static/template/report_template.xlsx");
                //基于提供的Excel模板文件在内存中创建一个Excel表格对象
                XSSFWorkbook excel = new XSSFWorkbook(inputStream);
                //XSSFWorkbook excel = new XSSFWorkbook(new FileInputStream(new File(filePath)));
                //读取第一个工作表
                XSSFSheet sheet = excel.getSheetAt(0);

                XSSFRow row = sheet.getRow(2);
                row.getCell(5).setCellValue(reportDate);//日期

                row = sheet.getRow(4);
                row.getCell(5).setCellValue(todayNewMember);//新增会员数（本日）
                row.getCell(7).setCellValue(totalMember);//总会员数

                row = sheet.getRow(5);
                row.getCell(5).setCellValue(thisWeekNewMember);//本周新增会员数
                row.getCell(7).setCellValue(thisMonthNewMember);//本月新增会员数

                row = sheet.getRow(7);
                row.getCell(5).setCellValue(todayOrderNumber);//今日预约数
                row.getCell(7).setCellValue(todayVisitsNumber);//今日到诊数

                row = sheet.getRow(8);
                row.getCell(5).setCellValue(thisWeekOrderNumber);//本周预约数
                row.getCell(7).setCellValue(thisWeekVisitsNumber);//本周到诊数

                row = sheet.getRow(9);
                row.getCell(5).setCellValue(thisMonthOrderNumber);//本月预约数
                row.getCell(7).setCellValue(thisMonthVisitsNumber);//本月到诊数

                int rowNum = 12;
                for(Map map : hotSetmeal){//热门套餐
                    String name = (String) map.get("name");
                    Long setmeal_count = (Long) map.get("setmeal_count");
                    BigDecimal proportion = (BigDecimal) map.get("proportion");
                    row = sheet.getRow(rowNum++);
                    row.getCell(4).setCellValue(name);//套餐名称
                    row.getCell(5).setCellValue(setmeal_count);//预约数量
                    row.getCell(6).setCellValue(proportion.doubleValue());//占比
                }

                //使用输出流进行表格下载,基于浏览器作为客户端下载
                ServletOutputStream out = response.getOutputStream();
                response.setContentType("application/vnd.ms-excel");//代表的是Excel文件类型
                long suffix=System.currentTimeMillis();
                response.setHeader("content-Disposition", "attachment;filename=report"+suffix+".xlsx");//指定以附件形式进行下载
                excel.write(out);

                out.flush();
                out.close();
                excel.close();
                return null;
            }catch (Exception e){
                return new Result(false,MessageConstant.GET_BUSINESS_REPORT_FAIL);
            }
        }


    //每月收入柱状图数据统计
    @RequestMapping("/income")
    public Result getIncomeReport(){
        Map<String,Object> map=new HashMap<>();
        try {
            List<String> months=new ArrayList();

            //获得当前日历对象
            Calendar calendar=Calendar.getInstance();
            //获得过去一年的十二个月
            calendar.add(Calendar.MONTH,-12);//获得当前时间的12个月前的时间
            for (int i = 0; i <12 ; i++) {
                calendar.add(calendar.MONTH,1);
                Date date=calendar.getTime();
                months.add(new SimpleDateFormat("yyyy.MM").format(date));
            }
            map.put("months",months);

            List<Integer> incomeCount = incomeService.findIncomeCountByMonths(months);
            map.put("incomeCount",incomeCount);
            return new Result(true, MessageConstant.GET_INCOME_COUNT_REPORT_SUCCESS,map);
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_INCOME_COUNT_REPORT_FAIL);
        }
    }

    //每月预约支付数据统计
    @RequestMapping("/order/pay")
    public Result getOrderPayReport(){
        Map<String,Object> map=new HashMap<>();
        try {
            List<String> months=new ArrayList();

            //获得当前日历对象
            Calendar calendar=Calendar.getInstance();
            //获得过去一年的十二个月
            calendar.add(Calendar.MONTH,-12);//获得当前时间的12个月前的时间
            for (int i = 0; i <12 ; i++) {
                calendar.add(calendar.MONTH,1);
                Date date=calendar.getTime();
                months.add(new SimpleDateFormat("yyyy.MM").format(date));
            }
            map.put("months",months);

            List<Integer> orderCount = orderService.findOrderCountByMonths(months);
            List<Integer> payCount = payService.findPayCountByMonths(months);
            map.put("orderCount",orderCount);
            map.put("payCount",payCount);
            return new Result(true, MessageConstant.GET_ORDER_PAY_REPORT_SUCCESS,map);
        } catch (Exception e) {
            return new Result(false, MessageConstant.GET_ORDER_PAY_REPORT_FAIL);
        }
    }
    }
